PK_MESH_facet_vector_t

struct PK_MESH_facet_vector_s
    {
    int                 n_vertex_positions;  --- Number of vertices in
                                             --- block (3 per facet).
    PK_VECTOR_t        *vertex_positions;    --- Positions of vertices
                                             --- of facets.
    PK_VECTOR1_t       *vertex_normals;      --- Normals of vertices
                                             --- (may be NULL).
    };
typedef struct PK_MESH_facet_vector_s PK_MESH_facet_vector_t;


This structure contains the data for a block of facets described as
independent facets. Parasolid will derive the connectivity between the
facets.

Used in:

PK_MESH_facet_t

The independent facets format describes each facet as a triple of vertex
positions. See here for more information.

Description of fields:


'n_vertex_positions'    The number of vertices in the array 'vertex_positions'.
                        'n_vertex_positions' must be a multiple of three where
                        groups of three 'vertex_positions' describe a facet.
                        If 'vertex_normals' is not NULL then it is also the
                        number of vertex normals.


'vertex_positions'      The positions of the facet vertices. Each group of
                        three 'vertex_positions' describes a facet.


'vertex_normals'        If not NULL, the normals of the vertices defined
                        by 'vertex_positions'.